Model-independent search for T violation with T2HK and DUNE

Abstract We consider the time reversal (T) transformation in neutrino oscillations in a model-independent way by comparing the observed transition probabilities at two different baselines at the same neutrino energy. We show that, under modest model assumptions, if the transition probability P ν μ →...

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Main Authors: Sabya Sachi Chatterjee, Sudhanwa Patra, Thomas Schwetz, Kiran Sharma
Format: Article
Language:English
Published: SpringerOpen 2024-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2024)200
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author Sabya Sachi Chatterjee
Sudhanwa Patra
Thomas Schwetz
Kiran Sharma
author_facet Sabya Sachi Chatterjee
Sudhanwa Patra
Thomas Schwetz
Kiran Sharma
author_sort Sabya Sachi Chatterjee
collection DOAJ
description Abstract We consider the time reversal (T) transformation in neutrino oscillations in a model-independent way by comparing the observed transition probabilities at two different baselines at the same neutrino energy. We show that, under modest model assumptions, if the transition probability P ν μ → ν e $$ {P}_{\nu_{\mu}\to {\nu}_e} $$ around E ν ≃ 0.86 GeV measured at DUNE is smaller than the one at T2HK the T symmetry has to be violated. Experimental requirements needed to achieve good sensitivity to this test for T violation are to obtain enough statistics at DUNE for E ν ≲ 1 GeV (around the 2nd oscillation maximum), good energy resolution (better than 10%), and near-detector measurements with a precision of order 1% or better.
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institution Kabale University
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spelling doaj-art-5b577079f96e4377905b3faa7f341c182025-01-05T12:06:23ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241212710.1007/JHEP12(2024)200Model-independent search for T violation with T2HK and DUNESabya Sachi Chatterjee0Sudhanwa Patra1Thomas Schwetz2Kiran Sharma3Institut für Astroteilchenphysik, Karlsruher Institut für Technologie (KIT)Department of Physics, Indian Institute of Technology BhilaiInstitut für Astroteilchenphysik, Karlsruher Institut für Technologie (KIT)Institut für Astroteilchenphysik, Karlsruher Institut für Technologie (KIT)Abstract We consider the time reversal (T) transformation in neutrino oscillations in a model-independent way by comparing the observed transition probabilities at two different baselines at the same neutrino energy. We show that, under modest model assumptions, if the transition probability P ν μ → ν e $$ {P}_{\nu_{\mu}\to {\nu}_e} $$ around E ν ≃ 0.86 GeV measured at DUNE is smaller than the one at T2HK the T symmetry has to be violated. Experimental requirements needed to achieve good sensitivity to this test for T violation are to obtain enough statistics at DUNE for E ν ≲ 1 GeV (around the 2nd oscillation maximum), good energy resolution (better than 10%), and near-detector measurements with a precision of order 1% or better.https://doi.org/10.1007/JHEP12(2024)200CP ViolationNeutrino MixingNon-Standard Neutrino PropertiesSterile or Heavy Neutrinos
spellingShingle Sabya Sachi Chatterjee
Sudhanwa Patra
Thomas Schwetz
Kiran Sharma
Model-independent search for T violation with T2HK and DUNE
Journal of High Energy Physics
CP Violation
Neutrino Mixing
Non-Standard Neutrino Properties
Sterile or Heavy Neutrinos
title Model-independent search for T violation with T2HK and DUNE
title_full Model-independent search for T violation with T2HK and DUNE
title_fullStr Model-independent search for T violation with T2HK and DUNE
title_full_unstemmed Model-independent search for T violation with T2HK and DUNE
title_short Model-independent search for T violation with T2HK and DUNE
title_sort model independent search for t violation with t2hk and dune
topic CP Violation
Neutrino Mixing
Non-Standard Neutrino Properties
Sterile or Heavy Neutrinos
url https://doi.org/10.1007/JHEP12(2024)200
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